“Sputnik Launch Propels soviets ahead in Space Race” In 1957, the United States government responded to the event described in this headline by...
Providing funds to improve the educational system in the United States
Reducing military spending
Constructing a space defense system
Building a space station with the Soviets

i think it would be a

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).

the dominoes began to fall. the surrender at appomattox took place a week later on april 9. while it was the most significant surrender to take place during the civil war, gen. robert e. lee, the confederacy's most respected commander, surrendered only his army of northern virginia to union gen. ulysses s. grant

explanation:

i believe your answer is d)